Selectivity and efficacy of herbicide GF-3488, containing synthetic auxins halauxifen-methyl and clopyralid, in winter oilseed rape crops in Ukraine

Halauxifen-methyl is a new synthetic auxin, which in combination with another auxin-like herbicide clopyralid is the active ingredient of complex herbicide GF-3488, that is used for dicotyledonous weeds control in winter oilseed rape crops. The reason of this study was a necessity to test crop selectivity and efficacy of GF-3488 to control dicotyledonous weeds in winter oilseed rape crops in Ukraine and also the possibility of GF-3488 application in the tank mixture with graminicide or/and insecticide to control monocotyledonous weeds and insects. A randomized block experiment was conducted in 2015—2017 in 4 locations. It was found that under spring applying, the GF-3488 is not inferior to another widely used herbicide Galera Super on selectivity to the crop. Herbicide GF-3488 at the rate 1.0 l/ha was significantly better than Galera Super at the rate 0.3 l/ha in controlling of annual dicotyledonous weeds Papaver rhoeas L., Galium aparine L., Consolida regalis S.F. Gray and was effective to control of certain types of cruciferous weeds, which are resistant to Galera Super. Adding graminicide Fusilade Forte and insecticide Nurelle D did not affect the GF-3488 selectivity to the crop and had no negative impact on dicotyledonous weeds control. Efficacy of monocotyledonous weeds control by graminicide did not change in the mixture with GF-3488. It was concluded that herbicide GF-3488 is effective on winter oilseed rape against dicotyledonous weed species. Therefore for the simultaneous control of dicotyledonous and monocotyledonous weeds in winter oilseed rape in the spring after the renewal of the crop vegetation herbicide GF-3488 is advisable to be used in a tank mixture with graminicides, and for simultaneous protection against weeds and pests it can be mixed with insecticides.

Download Full-text

Use of glufosinate-ammonium to control cruciferous weed species in glufosinate-resistant winter oilseed rape

Field Crops Research ◽

10.1016/s0378-4290(03)00163-1 ◽

2004 ◽

Vol 85 (2-3) ◽

pp. 237-249 ◽

Cited By ~ 6

Author(s):

U. Merkel ◽

G.-W. Rathke ◽

C. Schuster ◽

K. Warnstorff ◽

W. Diepenbrock

Keyword(s):

Oilseed Rape ◽

Weed Species ◽

Winter Oilseed Rape ◽

Glufosinate Ammonium

Download Full-text

Occurrence and distribution of important weed species in German winter oilseed rape fields

Journal of Plant Diseases and Protection ◽

10.1007/bf03356429 ◽

2012 ◽

Vol 119 (3) ◽

pp. 107-120 ◽

Cited By ~ 17

Author(s):

Kristin Hanzlik ◽

Bärbel Gerowitt

Keyword(s):

Oilseed Rape ◽

Weed Species ◽

Winter Oilseed Rape

Download Full-text

Foliar Application of Polyamines Modulates Winter Oilseed Rape Responses to Increasing Cold

Plants ◽

10.3390/plants9020179 ◽

2020 ◽

Vol 9 (2) ◽

pp. 179 ◽

Cited By ~ 2

Author(s):

Elžbieta Jankovska-Bortkevič ◽

Virgilija Gavelienė ◽

Vaidevutis Šveikauskas ◽

Rima Mockevičiūtė ◽

Jurga Jankauskienė ◽

...

Keyword(s):

Cold Stress ◽

Cold Tolerance ◽

Oilseed Rape ◽

Cold Resistance ◽

Foliar Application ◽

Negative Impact ◽

Winter Oilseed Rape ◽

Physiological Processes ◽

Ethylene Emission ◽

Stimulation Of

Cold stress is one of the most common abiotic stresses experienced by plants and is caused by low temperature extremes and variations. Polyamines (PAs) have been reported to contribute in abiotic stress defense processes in plants. The present study investigates the survival and responses of PA-treated non-acclimated (N) and acclimated (A) winter oilseed rape to increasing cold conditions. The study was conducted under controlled conditions. Seedlings were foliarly sprayed with spermidine (Spd), spermine (Spm), and putrescine (Put) solutions (1 mM) and exposed to four days of cold acclimation (4 °C) and two days of increasing cold (from −1 to −3 °C). Two cultivars with different cold tolerance were used in this study. The recorded traits included the percentage of survival, H+-ATPase activity, proline accumulation, and ethylene emission. Exogenous PA application improved cold resistance, maintained the activity of plasma membrane H+-ATPase, increased content of free proline, and delayed stimulation of ethylene emission under increasing cold. The results of the current study on winter oilseed rape revealed that foliar application of PAs may activate a defensive response (act as elicitor to trigger physiological processes), which may compensate the negative impact of cold stress. Thus, cold tolerance of winter oilseed rape can be enhanced by PA treatment.

Download Full-text

Factors affecting growth and yield of winter oilseed rape (Brassica napus), 1985–89

The Journal of Agricultural Science ◽

10.1017/s0021859600067332 ◽

1994 ◽

Vol 122 (3) ◽

pp. 405-413 ◽

Cited By ~ 14

Author(s):

J. E. Leach ◽

R. J. Darby ◽

I. H. Williams ◽

B. D. L. Fitt ◽

C. J. Rawlinson

Keyword(s):

Erucic Acid ◽

Oilseed Rape ◽

Sowing Date ◽

Growth And Yield ◽

Winter Oilseed Rape ◽

Factors Affecting ◽

Low Erucic Acid ◽

Nitrogen Rates ◽

Autumn And Winter ◽

Better Than

SUMMARYEffects of agronomic factors on yield of winter oilseed rape were examined in multifactorial experiments, with a single-low (low erucic acid, high glucosinolate) cultivar (Bienvenu) in 1984/85 to 1987/88 and a double-low (low erucic acid, low glucosinolate) cultivar (Ariana) in 1986/87 to 1988/89. Establishment of September-sown plots was better than that of August-sown plots in 1984, 1987 and 1988, but not in 1985 when September was very dry. The total dry matter (DM) (kg/ha) of August-sown plots was much greater than that of September-sown plots throughout autumn and winter but by harvest the plant DM of late-sown plots was slightly greater. Combine-harvested yields of late-sown plots were greater than those of early-sown plots in 1984/85 (cv. Bienvenu) but not in 1988/89 (cv. Ariana); effects of sowing date on yields were smaller in other seasons, although late-sown plots generally had larger yields. Insecticide treatments increased combine-harvested yields in 1987/88 (cv. Bienvenu) and 1988/89 (cv. Ariana) and increased hand-harvested yields in 1984/85, by increasing the number of plants/m2. Fungicide spray treatments increased yields in all years except 1989, by increasing 1000-seed weights. Application of growth regulator sprays increased yields in 1986/87 to 1988/89; effects on cv. Ariana were associated with increased numbers of pods/plant. There were no consistent effects of spring nitrogen rates or timing on yield or yield components.

Download Full-text

Anti-nutritional substances (GSL) in winter oilseed rape depending on the biostimulators used

Acta Agriculturae Scandinavica Section B - Soil & Plant Science ◽

10.1080/09064710.2021.1921251 ◽

2021 ◽

pp. 1-6

Author(s):

Anna Sikorska ◽

Marek Gugała ◽

Krystyna Zarzecka

Keyword(s):

Oilseed Rape ◽

Winter Oilseed Rape

Download Full-text

A novel deletion in FLOWERING LOCUS T modulates flowering time in winter oilseed rape

Theoretical and Applied Genetics ◽

10.1007/s00122-021-03768-4 ◽

2021 ◽

Author(s):

Paul Vollrath ◽

Harmeet S. Chawla ◽

Sarah V. Schiessl ◽

Iulian Gabur ◽

HueyTyng Lee ◽

...

Keyword(s):

Association Mapping ◽

Flowering Time ◽

Oilseed Rape ◽

Major Effect ◽

Structural Variants ◽

Winter Oilseed Rape ◽

Flowering Locus T ◽

Winter Type ◽

Long Read ◽

Flowering Locus

Abstract Key message A novel structural variant was discovered in the FLOWERING LOCUS T orthologue BnaFT.A02 by long-read sequencing. Nested association mapping in an elite winter oilseed rape population revealed that this 288 bp deletion associates with early flowering, putatively by modification of binding-sites for important flowering regulation genes. Abstract Perfect timing of flowering is crucial for optimal pollination and high seed yield. Extensive previous studies of flowering behavior in Brassica napus (canola, rapeseed) identified mutations in key flowering regulators which differentiate winter, semi-winter and spring ecotypes. However, because these are generally fixed in locally adapted genotypes, they have only limited relevance for fine adjustment of flowering time in elite cultivar gene pools. In crosses between ecotypes, the ecotype-specific major-effect mutations mask minor-effect loci of interest for breeding. Here, we investigated flowering time in a multiparental mapping population derived from seven elite winter oilseed rape cultivars which are fixed for major-effect mutations separating winter-type rapeseed from other ecotypes. Association mapping revealed eight genomic regions on chromosomes A02, C02 and C03 associating with fine modulation of flowering time. Long-read genomic resequencing of the seven parental lines identified seven structural variants coinciding with candidate genes for flowering time within chromosome regions associated with flowering time. Segregation patterns for these variants in the elite multiparental population and a diversity set of winter types using locus-specific assays revealed significant associations with flowering time for three deletions on chromosome A02. One of these was a previously undescribed 288 bp deletion within the second intron of FLOWERING LOCUS T on chromosome A02, emphasizing the advantage of long-read sequencing for detection of structural variants in this size range. Detailed analysis revealed the impact of this specific deletion on flowering-time modulation under extreme environments and varying day lengths in elite, winter-type oilseed rape.

Download Full-text